Sewing machine



Jan. 24, 1939. c. J. DORER 2,145,043

SEWING MACHINE Original Filed March :51, 1933 AWE/vice.- 645, 59 .1 fines:

Patented Jan. 24, 1939 UNITED STATES SEWING MACHINE Casper J. Dorer, Cleveland, Ohio Application March 31, 1933, Serial No. 663,723 Renewed January 28, 1937 2 Claims. (01. 112-218) This invention relates to a sewing machine and particularly to the construction of the sewing machine head and hollow bracket arm or gooseneck.

5 It is desirable to provide in a sewing machine means for illuminating the work to enable the operator to observe fully at all times the operation of the needle bar and needle and the character of the stitches.

The principal object of the present invention is to provide in a sewing machine improved means for lighting the needleplate and the bed and operating members adjacent to said needle plate.

Another object is to provide lighting means for a sewing machine, which while furnishing maximum illumination, does not reflect or shine in the eyes of the operator.

A. further object is to provide in a sewing machine, lighting means which improves the appearance of the machine, occupies a minimum amount of space, is so positioned as to fully protect the light against damage and to afford no obstructions to the operator, and contains no loose or readily detachable parts which might be lost, except, of course, the light bulb itself.

A still further object is to provide lighting -means for a sewing machine, of such character that a separate reflector shield for the light bulb is not required.

A further object is to provide in the hollow bracket arm or gooseneck of a sewing machine, a housing chamber for an electric light bulb,

whereby the light bulb is substantially enclosed by the hollow arm or gooseneck. without necessitating the formation of openings therein through which lubricant might pass outwardly thereof upon the work or through which dirt might enter to the detriment of the operative parts of the machine housed in the hollow arm or gooseneck.

A further object is to provide in the hollow bracket arm or gooseneck of a sewing machine, means for housing an electric light bulb which is of such form and character as to furnish increased reflecting surface as compared to the reflecting surface of the ordinary detachable shade or reflector.

Further and additional objects and advantages residing in the inventionwill become apparent hereinafter during the detailed description of an embodiment thereof which is illustrated in the accompanying drawing wherein:

Fig. 1 is a rear elevational view of a sewing machine head including the hollow bracket arm or gooseneck and the mounting bed therefor,

with certain portions of the head being indicated in dotted lines. i

Fig. 2 is a sectional view taken substantially on line 2-2 of Fig. 1, looking in the direction of the arrows; 5 Fig. 3 is a sectional view taken substantially on line 3-3 of Fig. 2 looking in the direction 4 of the arrows.

v the direction of the arrows,

Referring to the drawing, and particularly to Figs. 1, 2 and 4, the sewing machine head includes a bed III which supports the hollow bracket 20 arm or gooseneck comprising a vertical member or standard II and a horizontal member l2 on the end of which is arranged the face I3. The face l3 has slidably mounted therein the usual presser bar it and reciprocating needle bar 15 5 carrying, respectively, a presser foot l6 and a needle l'l, the latter operating through an opening in the needle plate, as is well understood in the art. The needle bar I5 is driven by suitable mechanism arranged in the face [3 and 30 operatively connected with the upper shaft l8 of the sewing machine, indicated in Figs. 1 and 4 in dotted lines and in Fig. 2 in section. The upper shaft f 8 extends through the horizontal member of the hollow arm or gooseneck and is 5 operatively connected adjacent its left hand end, as viewed in Fig. l, with suitable driving means and with a driving connection downwardly to the shuttle driving shaft and the feed bar rocking shaft arranged in the bed, but not illustrated 40 herein, since it forms, per se, no part of the present invention and is well understood in the art.

The hollow bracket arm or gooseneck is usually an integral casting and is provided interiorly 45 with bearing supports for the various shafts of the operating mechanism, and since such shafts and their bearings, together with the gearing on the shafts, are arranged or housed in the hollow bracket arm it is quite evident that it 50 will be necessary to introduce lubricant into the arm for the purpose of lubricating such operating parts.

It is highly desirable to provide a sewing machine with means for illuminating the work over 55 a wide area, which, of course, includes the part where the actual sewing operation takes place, as at the needle plate and the bed adjacent thereto. In providing such illuminating means it is important that the same be so constructed as to occupy as little space as possible and to offer no protruding or obstructive parts which would inconvenience the operator of the machine and detract from the appearance thereof.

The present invention contemplates illuminating or lighting means for a sewing machine, wherein said means may be built into the hollow bracket arm or gooseneck, so as to occupy a minimum amount of space, but without at the same time forming openings into the interior of the hollow bracket arm, in which are housed the lubricated operative parts of the machine as previously stated.

In accomplishing this end, the horizontal member of -the hollow bracket arm is formed with an elongated recess or chamber I9 on its under side, by arching or offsetting the bottom wall 20 of the horizontal member upwardly substantially the depth of the chamber and curving the side walls 2I outwardly and downwardly from the upwardly arched portion of the bottom wall 20. It will be seen that the recess or chamber I9, as thus provided, is located substantially within the external dimensions of horizontal member I2, but does not destroy the tubular character of the member or provide any openings therein, and hence, no lubricant within the member can be thrown outwardly upon the work or can dirt or other foreign matter get into the hollow bracket and upon the operating mechanism contained therein.

The recess or chamber I9 extends on the under side of the member I2 from adjacent the vertical member II toward the face I3 and beyond the point where the member I2 commences to enlarge or flare outwardly to provide a bearing surface for the face I3, the deepest and widest portion of the recess or chamber being located substantially midway of its ends. It will be readily appreciated from the foregoing description and from an inspection of Figs. 1 and 2 of the drawing, that the provision of the recess or chamber in the under side of the member I2 in this manner, rather than detracting from the appearance of the hollow bracket arm or gooseneck of the sewing machine, actually improves the appearance thereof.

Although various ways of mounting an electric light bulb in the recess or chamber may be employed, there is illustrated in the drawing a form of mounting for the light which possesses certain advantages as will now be pointed out. A conduit 22 extends vertically adjacent the member II with its lower end passing through the bed I I] and its upper end extending into a tubular fitting 23 secured to the vertical member I I of the hollow bracket arm by a suitable attaching screw passing through a lug 24 and into a tapped opening in the member II. The tubular fitting 23 is provided with an inwardly extending arm 25 lying against the inner side of the vertical member I I, that is the right hand side of the member I I, as viewed in Fig. 1. The wall of the member II is provided with a cutaway portion 26 closed by the fitting 23 and the arm 25 thereof, and into which from the conduit 22 extend wires 21 for the electric light.

The arm 25 is provided with an opening in which is fitted a suitable switch 28 operated by the customary button lever 29 and clamped in the opening by means of a nut 30 screwed upon the outwardly extending portion of the switch and engaging the enlarged circular end of a channeled supporting plate 3I fitting over the outwardly extending portion of the switch 28 and arranged between the nut 30 and the inwardly extending arm 25 of the fitting 23. The channeled strip 3| is arranged so that its channel faces the vertical member II and has an intermediate angularly disposed portion such that its outer end extends into the end of the recess I9 adjacent the vertical member I I. The end of the channel member 3|, which extends into the recess or chamber, is provided with a threaded lateral extension 32 upon which is screwed a lamp socket 33 for the electric light bulb 34. The wires 21, as previously mentioned, pass from the conduit 22 into the cutaway portion in the vertical member II that is closed by the fitting 23 and arm 25, and from there to the switch 28 from whence they lead upwardly to the light socket within the channel supported strip 3I. It will be seen that the conduit 22, fitting 23 and supporting strip 3I provide a simple and quickly installed means for leading the wiring to the light and for supporting the light in the recess or chamber I9 and that, since the conduit 22 and fitting 23 are located on the' rear side of the hollow arm with respect to the operator's position, they will not interfere with the operation of the machine. Of course, the lamp socket 33 could be secured directly to the wall of the member I I and within the recess or chamber I9, while the wirescould pass therefrom through an opening into the member II and then downwardly within the interior of said member.

As previously set forth, the recess or chamber I9 in the underside of the horizontal member I2 extends longitudinally of the member I2 for a substantial distance and it is thus possible to use a rather large and relatively long electric light bulb therein. Furthermore, since the recess or chamber is relatively long and the side walls 2I extend outwardly and downwardly from the arched portion of the underwall of the member I2, a maximum reflecting surface is provided and one that is substantially greater than that afforded by the usual reflecting shade, it being noted, at the same time, that the present construction is such as to not require the use of a separate reflecting shade. The maximum reflecting surface offered by the walls of the recess or chamber and the ability to employ a relatively large electric light therein, together with the position of the recess or chamber on the under side of the horizontal member of the arm, afford better illumination than is aiforded by the usual lighting attachment for sewing machines and covers substantially the entire upper surface of the bed to the right-of the vertical member II, as viewedin the drawing.

As previously stated, the provision of the recess or chamber for the light within the under side of the horizontal member I2 of the arm results in the lighting means being located in a position that does not interfere with the operation of the machine, and since the light and its socket are housed within the external dimensions of the horizontal member I 2, fully protects the same against possible injury, particularly in machines of the drop head type.

It should furthermore be noted that "there are practically no loose parts in the present construction, as compared to the lighting attachment heretofore used on sewing machines. The

light from shininginto the eyes 01' the operator.

Although a preferred embodiment of the invention has been described and illustrated herein, it

within the scope of the appended claims. c Having thus described my invention, I claim: 1. In combination, in a sewing machine having a hollow bracket arm comprising a vertical member and a horizontal member; said horizontal member having means forming therein a recess separate from the interior thereof, a vertically' extending conduit secured exteriorly oi the vertical member and including a fitting at its upper end having a portion extending inwardly of they J c sunp 't d de of said rticallmember, a channeled portion and having its upper ecess', and an electric lamp I said-I-upper'end of said strip. 2 Incombinatiominasewing machine, a hoiend arrangedli ii lowbracketgarmfoomprising.a vertical member should be understood that the invention is susceptibie of various modifications and adaptations and a horizontal mer'riber,{said horizontal, member having integralfportions forming therein on its under side a recess; separate from the interior thereof a comiuitarranged exteriorly of the ver- .tical mem ber"a nd including a fitting at its upper end havinga portionlying adjacent to the inner side of said vertical member, achanne'led strip i securedto said portion of the fitting and having an end extendinginto said recess and provided with-means-'for'supporting an electric socket, and

an electric socket arranged on said means.

CASPER J. DORER. 

